baber/WOPTO huggingface dataset:
Patent GB-677846-A (GB)
Title: Improvements in or relating to rotary position indicators
IPC: H03J3/10
Filed: 1949-07-26
Abstract: 677,846. Mechanical switches; indicators. GENERAL ELECTRIC CO., Ltd., BINNS, A. W. and SHUARD, F. E. July 24, 1950. [July 26, 1949] No. 19644/49. Class 38 (v). [Also in Group XL (c)] A switch device for indicating the attainment of a desired position of a rotary shaft, particularly the shaft of a tuning capacitor, comprises a flat plate rotated with the shaft and carrying metallic studs projecting from one face of the plate. The studs in turn bridge a pair of contacts to operate a visual or aural indicator. As shown, an insulating plate 1 on a shaft 2 carries radial strips 5 riveted to the plate at one end 6 and having studs 7 at the other end projecting through circumferential slots in the plate. The studs in turn engage an arm 15 pivoted at 16 and comprising an insulating strip sandwiched between two conductive strips, the two conductive strips being cut away so that each forms one edge of a V-slot. The insulating strip has a semi-circular slot so that the stud when central in the slots bridges the two metal strips. The angular position of the studs may be adjusted by rotating an eccentric screw 10 and then locked in position by a screw 12. In an alternative arrangement the studs are formed by eccentric nuts secured to bolts through the plate and adjusted in angular position by revolving the bolt. The range of adjustment may be increased by mounting the bolts and nuts in bushes which may be adjusted in position along circumferential slots in the plate.
Patent GB-661564-A (GB)
Title: Improvements relating to electric discharge devices such as tubular lamps
Inventor: RIDOUT WILLIAM HARRY
IPC: H01J61/04
Filed: 1948-07-23
Abstract: 661,564. Electric discharge lamps. BRITISH THOMSON - HOUSTON CO., Ltd. May 11, 1949 [July 23, 1948], No. 19756/48. Class 39 (i). An electrode structure for a low pressure metal vapour discharge device, e.g. a fluorescent lamp, comprises a coiled filament 1 shielded from the main discharge by two closely spaced flat plates 5 mounted either side by side or end to end, parallel to the axis of the filament 1, and connected one to each end of the filament. The plates may alternatively be curved to surround the filament.
Patent GB-1241812-A (GB)
Title: Improvements in knock-down portable skid boxes
Inventor: GARTSIDE THOMAS ALBERT
IPC: B65D6/16
Filed: 1968-04-26
Abstract: 1,241,812. Knock-down portable skid box. BULLENS MIDLANDS Ltd. 23 July, 1969 [26 April, 1968], No. 19804/68. Heading B8P.  A knock-down portable skid box for transporting machines e.g. knitting machines may be erected around a machine by bolting together a metal framework comprising upper 16a, 16b and lower 10a, 10b longitudinal members, fabricated to a required length by interconnecting a plurality of sections via splice members 27, 26, upper and lower transverse ties 20, 11 and side struts 17a, 17b, 18a, 18b which are detachably secured to the top face of the lower longitudinal members 10a, 10b via L-shaped anchors 19a, 19b. The joints between the lower longitudinal sections substantially coincide with the anchors 19a, 19b whereat vertical struts 18a, 18b are located back-to-baok. The lower members 10a, 10b have chamfered ends 14 and may have an I-shaped cross-section that may be strengthened by fillers 24. The I-shaped sections may be formed integral or by securing two channel-shaped members back-to-back. The lower transverse ties 11 have machine attachments and may be channel shaped to include a wooden machine support 25. The struts 17a, 17b, 18a, 18b and ties 20 may be angle-irons and the upper members 16a, 16b may be provided with lifting lugs. End crossbraces may be provided (Fig. 5). The upper ties 20 may be upwardly bowed or cranked to accommodate a machine and the sides, top and ends of the framework may be closed by applied sheet material. Side frames 15a, 15b comprising members 16a, 16b and struts 17a, 18a, 17b, 18b may be provided in detachable lengths.
Patent GB-1386696-A (GB)
Title: Method for the production of a sheet and a copy sheet produced by  the method
IPC: B41M1/36
Filed: 1972-04-28
Abstract: 1386696 Copy sheet G RITZERFELD 28 April 1972 [25 May 1971] 19828/72 Heading A2B A copy sheet for use in a spirit duplicating process comprises a substrate of a substantially wood-free paper or card material which has retained therein or thereon an acidic salt capable of reacting with a basic alcohol-soluble dye to produce a salt having a M.W. greater than that of the acidic salt. By "wood-free paper" is meant paper produced from an alternative source to wood pulp. The acidic salt may be a salt of picric acid, or tungstomolybdic acid, or tannin.
Patent GB-479665-A (GB)
Title: Improvements in or relating to processes for the production of metallic designs upon light metals
IPC: B41M1/28
Filed: 1937-07-19
Abstract: 479,665. Ornamenting aluminium &c. SIEMENS & HALSKE AKT.-GES. July 19, 1937, No. 19959. Convention date, July 17, 1936. Drawings to Specification. [Class 93] Metallic designs are produced on the surface of a light metal, such as aluminium, by forming an oxide coating on the surface, covering the coating with a metal coating, printing a design using a resist ink, removing the exposed parts of the metal coating by means of a corrosive agent such as nitric acid, and removing the resist ; the oxide coating may be coloured before or after removing the resist. The metal coating may be applied by spraying, fusing, vaporizing, or by applying silver salts and reducing by exposure to light and development; in the last two methods, the metal layers may be strengthened galvanically.
Patent GB-792679-A (GB)
Title: Horse box
IPC: B60P3/04
Filed: 1955-07-11
Abstract: 792,679. Horse boxes. SMITH, G. C. July 5, 1956 [July 11, 1955], No. 19977/55. Class 108(1) A horse box comprises level floor portions 6, 7, inclined floor portions 8, 9 providing a low loading height, a rear ramp 11 hinged at 10, a side ramp 12, and sockets in the roof and floor for receiving removable pillars 13 for the mounting of partitions 14 and crossbars 15, 16. A ventilating duct 17 in each upper longitudinal edge of the body permits air to enter the box via louvres 21 and nozzle apertures 19. The box may be of such a size as to accommodate six horses, in which case the ramp 12 is used for loading and the ramp 11 for unloading, a reverse procedure from that of the three horse box shown in Figs. 1 and 2.
Patent GB-821898-A (GB)
Title: Improvements relating to rotary valves
Inventor: TAYLOR ARTHUR EDWARD
IPC: F16K11/085
Filed: 1957-06-25
Abstract: 821,898. Valves. CROSSE & BLACKWELL Ltd. Dec. 13, 1957 [June 25, 1957], No. 19993/57. Class 135. A rotary valve comprises a valve body 1 having a port 3 leading into one end and two other ports 4, 5 in the cylindrical wall of the body, and a cylindrical valve closure member 6 rotatable therein. The valve closure member has an inner cylindrical core on which an outer cylindrical sleeve 7 is fitted and has two passages 9, 10, the passage 9 placing the port 3 in communication with the port 4 in one position of the closure member and the passage 10 placing the port 4 in communication with the port 5 in another position of the closure member. A removable cap 13 is provided at the end of the valve body remote from the port 3, and has a gasket ring 15 which bears on the ends of both the valve body and the closure member. The cap is secured by a bayonettype fitting 14. The outer cylindrical sleeve 7 may be made of a non-corrosive bearing metal and may be secured to the inner core by means of a grub screw 8.
Patent GB-902165-A (GB)
Title: Improvements in systems for reading magnetic tapes
IPC: G11B20/16
Filed: 1960-06-08
Abstract: 902,165. Reading skewed magnetic tapes. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 8, 1960 [Sept. 18, 1959], No. 20061/60. Addition to 902,164. Drawings to Specification. Class 106 (1). The apparatus of the parent Specification is provided with means which indicate whether a condition of excessive skew exists, or with means which gives a measurement of the skew in terms of the conditions of track read-in counters at the time when the read-out counter is at stage 1. Excessive skew is detected when the track 1 read-in counter and the read-out counter are both at the same stage, other than at start up. Specification 902,163 also is referred to.
Patent GB-294535-A (GB)
IPC: F21V19/06
Filed: 1928-07-10
Abstract: 294,535. Aladdin Industries, Ltd., (Assignees of Davis, C. W.). July 25, 1927, [Convention date]. Mantle surpports,-A mantle 30 particularly for an incandescent wick lamp, is supported by a wire 31, above and from a basal ring 9, preferably so as to leave a space for the passage of air between the lower edge of the mantle and the ring, the mantle being maintained concentric with the ring by a wire 40 and preferably held against vertical movement as by means of the mantle head described in Specification 294,536. The ends of the wire 31 are fixed in sockets 34, each formed with a head 37, between which and the lower end of the socket is clamped a lug 36 on the ring 9. The wire 40 is secured in position by bending over lateral projections 39 on the lugs 36. The ring 9 may constitute the upper section of a burner cone as described in Specification 294,534. Specifications 3969/11 and 314,967 are referred to.
Patent GB-922916-A (GB)
Title: Method of producing synthetic plastics containers
IPC: B29C69/00
Filed: 1961-06-05
Abstract: 922,916. Printing on curved surfaces. AMERICAN CAN CO. June 5, 1961 [Oct. 11, 1960], No. 20133/61. Classes 100 (2). [Also in Group XVII] A method of making tubular plastics e.g. polyethylene containers 21 with end closures 23, 24 of metal or other material in which each body 22 receives external printing as in Specification 879,752. Specification 798,069 also is referred to.
Patent GB-519927-A (GB)
Title: Improvements in or relating to winches or the like
IPC: B66D1/06
Filed: 1938-07-07
Abstract: 519,927. Winches. BLUNDELL, (nee SHIRSHOV), M. E., and PUBLIC TRUSTEE, [Representatives of SHIRSHOV, J. P.]. July 7, 1938, No. 20184. [Class 78 (v)] [Also in Group XXIV] A hand-operated winch is provided with a spring-pressed dog-clutch 14 to allow of slip in case of excess load. The hollow shaft 10 driven by the clutch is rotatably fixed to an inner shaft 9 terminating in an eccentric 8 turning inside a gear wheel 7 which is held by an Oldham coupling or the like to gyrate only. The wheel 7 engages a slightly larger surrounding pinion 4 mounted on the drum 2, and so imparts slow rotation thereto with mechanical advantage. A releasable pawl 31 engages a ratchet wheel 12 on the shaft 10 to allow of free unwinding. A spring-pressed brake shoe 33 bears continuously on the drum face 6.
Patent GB-1379351-A (GB)
Title: Phosphoric acid purification
IPC: C01B25/234
Filed: 1973-04-27
Abstract: 1379351 Purifying phosphoric acid TOYO SODA MFG CO Ltd 27 April 1973 [10 June 1972] 20218/73 Heading C1A Impurities, e.g. Zn, Cd, Fe and Al, are removed from H 2 SO 4  wet-process phosphoric acid by (a) extracting the acid into a partially water-miscible solvent to obtain a solvent phase containing 0À2-10 g./l. Cl ions, (b) contacting the acid/solvent phase with 0À03-3 times its volume of aq. phosphoric acid soln. containing 0À01-20 g./l. Cl ions to extract the impurities into the aq. acid phase, and then (c) back-extracting the acid into an aq. phase to obtain a purified acid soln. The solvent may be a C 4 -C 6  alcohol, tributyl phosphate, a ketone or an ether. The aq. phase may be alkaline. The Cl ion concn. may be made up by adding HCl to the extraction step (a). The acid from the back-extraction step (c) may be recycled to the purification step (b) or heated to remove HCl. The solvent from step (c) may be recycled to the extraction step (a) or to a fourth step (d) wherein impurities accumulating in the acid, recovered from steps (a) or (b), are removed. The solvent is then recycled to step (a). The acid from step (b) may be recycled to step (a) or to step (d) as stated. The solvent from step (b) may also be recycled to step (a). The extractions may be carried out counter-currently in an airblown mixer-settler or a plate tower containing 3-100 zones.
Patent GB-1335491-A (GB)
Title: Thread trimmer in a sewing machine
IPC: D05B65/00
Filed: 1970-04-28
Abstract: 1335491 Sewing machines CLINTON INDUSTRIES INC 19 April 1971 [27 Jan 1970] 20435/71 Heading DIG In a sewing machine with a needle thread cutting element 42 on the presser foot 23 adjacent a needle slot 24 therein, a first thread drawing means 82 for drawing the thread tail between the raised needle and the foot across the cutting element 42 and a second thread drawing means 63 operative on the thread T between the needle and a releasable tensioner 28 to draw thread from a reel or other source beyond the tensioner, a device such as a solenoid-operated rod 44 with an arm 50 is operable to sequentially move the means 82 past the thread tail, release the tensioner 28, actuate the second means 63 to draw out thread and then retract the means 63, reactivate the tensioner and retract the first means to gather and cut the thread tail.  The cutting element 42 with its edge 43 is part of a resilient sheet member 36 secured to the presser foot post 17. The first thread drawing means comprises a bent wire 83 with a hook 87 at one end with a narrow bight which holds the thread as it is cut. The wire 83 is adjustably mounted in a bore in a rod 80 extending from one end of a lever 76 which is pivoted about a pivot 77 (Fig. 8) by a pin 79 of the lever engaging a vertical slot 54 of the arm 50 which is secured to the solenoidoperated rod 44. The second thread drawing means comprises a fixed open loop 60 and two open loops 72 through which the thread T passes, the loops 72 being mounted on a member 64 which is adjustably secured by screws 66 to and is movable with the arm 52. The adjustable thread tensioner 28 (Fig. 1a) has a fixed disc 29 and a disc 29' which is movable axially by a rod 47' as its end is engaged by the free end of a bent rod 47 secured to the solenoid operated rod 44.
Patent GB-1173902-A (GB)
Title: Improvements in or relating to Nuclear Reactor Fuel Elements
Inventor: CLAPHAM LESLIE
IPC: G21C3/10
Filed: 1966-05-10
Abstract: 1,173,902. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 18 April, 1967 [10 May, 1966], No. 20592/66. Heading G6C. The sheathed, nuclear reactor fuel element 2, is provided with coned and recessed end fittings 8 to facilitate vertical stacking. Each end fitting incorporates a skirt shroud, 12, which protects the weld 7. The locking ring 14 is welded to shroud 12 and engages with the recesses, 16, to prevent unscrewing of fittings 8 during use in the reactor.
Patent GB-740752-A (GB)
Title: Rivet feeding device
IPC: B21J15/32
Filed: 1952-08-18
Abstract: 740,752. Rivet-feeding devices. KELSEYHAYES WHEEL CO. Aug. 18, 1952 [Sept. 10, 1951], No. 20737/52. Class 78 (1). A modification of the invention set out in Specification 740,760 comprises a reciprocating slide 50 which is adapted to eject wrongly-positioned rivets as they slide down slots 48 after being fed thereto by plunger 18. As shown, a pair of slides 50 is reciprocated by a cylinder 52 pivoted to fixture 53 so as to slide over the top of a pair of slots 48 and beneath a flange 60. Specification 740,741, [Group XXII], also is referred to.
Patent GB-836059-A (GB)
Title: Improvements in or relating to the production of ceramic bodies
Inventor: WYLDE JOHN HENRY
IPC: C04B35/195
Filed: 1957-07-01
Abstract: A mixture, in weight per cent, of talc 20-30; china clay 40-60; and ball clay 20-40; is shaped and fired at 1250 DEG -1380 DEG C. so that substantially the maximum amount of cordicrite is formed. Fireclay may replace part of either clays.  The product-a grog-may be ground and mixed with further mixture to reduce shrinkage on firing.
Patent GB-597293-A (GB)
Title: Improvements in or relating to glass to metal seals
IPC: C03C27/04
Filed: 1945-08-13
Abstract: 597,293. Glass. M-O VALVE CO., Ltd., MANNERS, M., and PARTRIDGE, J. H. Aug. 13, 1945, No. 20755. [Class 56] [Also in Group XXXVI] The invention relates to sealing tungsten, molybdenum and like metal rods &c. to glass pinches in the manufacture of thermionic valves. The following are given as examples of alkali-free boro-silicate glasses which may be used for pre-coating the rods &c. :
Patent GB-261477-A (GB)
Title: Improvements in control gear for electrically driven washing and other machines
IPC: D06F33/02
Filed: 1925-08-20
Abstract: 261,477. Braithwaite & Son, Engineers, Ltd., I., Banks, W., and Brooke, W. Aug. 20, 1925. Interconnecting guard with stamting-gear.- Electric motors for driving washing or other machines through a cycle of operations and stopping them in predetermined positions are controlled by a rotary drum controller turned by a pilot motor having a master controller operated by moving a handle R from " start " to " stop " position, means being provided so that the " stop " movement of the handle does not bring about stoppage of the driven machine until a predetermined position has been attained, and for interconnecting the control gear with the machine door. When the " stop " movement is made, the handle R is mechanically disconnected from the master controller spindle 82, which receives its final stopping movement from a link and lever W<1> at the moment when a notch on a washer cam-wheel V arrives at a given position. The lever VV<1> is connected to a safety catch, which engages a raised portion or rib on the washer door and prevents opening thereof until the motor is stopped and braked, and also prevents switching-on of the current while the door is open. The invention is applicable to motors driving ironing and drying machines, rotary dyeing and scouring machines, mixing machines, and reciprocating machine tools.
Patent GB-1215239-A (GB)
Title: Cracking hydrocarbons into gaseous olefins
IPC: C10G9/32
Filed: 1968-05-02
Abstract: 1,215,239. Cracking hydrocarbons. BADISCHE ANILIN- & SODA-FABRIK A.G. 2 May, 1968 [6 May, 1967], No. 20864/68. Heading C5E. Hydrocarbons containing high boiling constituents are cracked at 680-850‹ C. into gaseous olefins in contact with hot inert heat carrier particles of size 0À05-4 mm. which are recycled between a fluidized-bed reactor 1, and a fluidized-bed regenerator 2, the cracked gas and vapour leaving the reactor being freed in a cyclone (not shown) from the entrained solid materials which are returned to the system, and high boiling cracked oil residues and the cracked coke adhering to the heat carrier being burned with air in the fluidized-bed in the regenerator the reactor and regenerator are devoid of grates and baffles, each have a conical lower portion of angle of slope (#) between 30 and 70 degrees, and have lateral inlet nozzles 6, 13 for the hydrocarbon fuel and at least 70% of the fluidizing agent inserted in the conical portions. The fluidized inert heat carrier is recycled between the reactor and the regenerator by means of down pipes 3 and rising pipes 4. The inert heat carrier may be aluminium silicate containing more than 50% by wt. Al 2 0 3 . Steam and oxygen may be used as fluidizing agents.
Patent GB-874168-A (GB)
Title: Improvements in and relating to polymerization
IPC: C08F220/12
Filed: 1959-06-18
Abstract: Interpolymers of 45-89 weight per cent of an alkyl acrylate in which the alkyl group contains 1-4 carbon atoms, 0-44 weight per cent of methyl or ethyl methacrylate, 3-12 weight per cent of acrylic or methacrylic acid and 8-25 weight per cent of N-methylol acrylamide or N-methylol methacrylamide may be prepared by polymerizing the monomers in anhydrous low molecular weight aliphatic alcohols, e.g. methanol, ethanol, propanols and butanols, in the presence of a catalyst, e.g. hydrocarbon peroxides and hydroperoxides, organic peracids and peresters, acyl peroxides, ketone peroxides, azo compounds, nuclear radiation, X-rays, ultra-violet rays and ultrasonic waves.  They may be converted to salts with volatile nitrogenous bases, e.g. ammonia, hydrazine and low boiling amines. Preferably water and the base are added to the alcoholic solution of the interpolymer, and the alcohol and excess base distilled off to give an aqueous solution of the polymer salt, which may be used in coating, impregnating and dyeing woven and non-woven fabrics and in the manufacture of papers and paints.  The interpolymers may be insolubilized by heating.  Examples describe the preparation of aqueous solutions of the ammonium salts of interpolymers of acrylic acid, ethyl acrylate and N-methylol acrylamide with (I, III and V) and without (II and IV) methyl methacrylate.
Patent GB-333360-A (GB)
Title: Improvements in or relating to coin-freed apparatus
IPC: G07F9/10
Filed: 1929-07-08
Abstract: 333,360. Williamson, W. H. July 8, 1929. No Patent granted (Sealing fee not paid). Casings.-The casing of a coin-freed vending machine comprises an inner case 12, Fig. 4, open at the front and having two slots 15 on the sides at the bottom to receive pins 10 projecting inwardly from the bottom of the sides 8 of an outer case 7. The outer case is open at the back and the bottom, and normally fits over the innercase with its top 9 resting on the top 13 of the inner case, the two parts being secured together by a look 17. When access is desired to the interior of the machine for refilling, emptying the cash receptacle, or any other purpose, the lock 17 is unlocked and the outer case is swung about the pins 10 to an horizontal position as shown in Fig. 4. It is then pushed back until the pins reach the rear ends of the slots 15 and can be turned to hang downwards as shown in Fig. 6, the back wall 11 of the inner case being stepped at 16 to accommodate the end of the front wall of the outer case. The cases may be made from single castings and a single rod connecting the walls 8 of the outer case may take the place of the two pins 10.
Patent GB-360830-A (GB)
Title: Improvements in and apparatus for the manufacture and production of hydrocarbon products, in particular of lubricating oils by hydrogenation
IPC: C10G47/00
Filed: 1930-07-10
Abstract: <PICT:0360830/III/1> Distillable carbonaceous material produced by or to be subjected to hydrogenation, destructive or otherwise, is distilled under pressure in the presence of hydrogen.  The hydrogen may be contained in waste gases from a destructive hydrogenation, and may contain finely divided liquids, such as a mist of water, alcohol, benzene, or benzines.  Crude oil topped to 325 DEG  C. and preheated to 400 DEG  C. with hydrogen at 200 atmospheres in a preheater A is passed into a distilling column B.  The vapours and hydrogen pass over into a reaction vessel C containing molybdic acid, zinc oxide, and magnesia.  A product containing 40 per cent of spindle and machine oils is condensed and collected in the vessel D.  The heavy constituents remaining in the column B pass into the vessel E where they are treated in the liquid phase with hydrogen and a catalyst of finely divided molybdic acid, chromic acid, and manganese carbonate. The liquid and vapour products pass into a distilling column G supplied with hydrogen from a pipe H.  Spindle and machine oils collect in the vessel J, and the residue K is returned to the vessel E.  Specifications 341,560 and 345,282 are referred to.
Patent GB-843064-A (GB)
Title: Vacuum casting apparatus
IPC: B22D18/06
Filed: 1958-06-30
Abstract: 843,064. Casting-machines. UNITED STATES STEEL CORPORATION. June 30, 1958 [Aug. 30, 1957], No. 20926/58. Class 83 (1). A vacuum bottom-pouring or top-pouring casting-apparatus comprises a sealed bell member 6 having a ring-like bearing plate 36 and a number of columns 38 rising from the plate to support a ladle L. The bell is guided by lugs 28 on to an annular base plate 14 carrying the vacuum connection 24. The top 48 of the bell is dished, to allow for expansion during the casting of metal into the mould M, and is supported by rods 50 from a ladle-supporting platform 40 carried by the columns 38. A vacuum of 100 microns H g  is maintained in the bell, which is removed when casting is complete.